LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Coolant indicator/sensor

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Old Jan 3, 2008 | 03:24 PM
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Camm95Z28's Avatar
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From: Pottsville, Pa. 17901
Coolant indicator/sensor

Hello there, i am researching parts and prices for a low coolant sensor for my Z. I came across a " engine coolant level indicator module". Are they different names for the same part?

P.S. my problem I am trying to solve is my low coolant light being on when the system is quite full. Thanks
Old Jan 3, 2008 | 03:26 PM
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Bluovlh8er's Avatar
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x2 me 22222222222222222..........................
Old Jan 3, 2008 | 03:31 PM
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CCCCCYA's Avatar
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Just clean the old one you have...
Old Jan 3, 2008 | 03:51 PM
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Unplug it and check the coolant from time to time. It won't set any codes.
Old Jan 3, 2008 | 03:59 PM
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Originally Posted by moparman
Unplug it and check the coolant from time to time. It won't set any codes.
Exactly. No need really for that sensor. I have had mine unplugged for a long time now. No more light!
Old Jan 5, 2008 | 12:05 PM
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Ok thanks again. Yes I was hoping there was a alternative to paying $50 for something that small and really insignificant.
Old Jan 5, 2008 | 02:48 PM
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Originally Posted by Camm95Z28
Hello there, i am researching parts and prices for a low coolant sensor for my Z. I came across a " engine coolant level indicator module". Are they different names for the same part?

P.S. my problem I am trying to solve is my low coolant light being on when the system is quite full. Thanks
Yes, it is the same thing. At touchy as overheating is to the LT1, I prefer to have all my sensors in operating condition.
Old Jan 5, 2008 | 04:43 PM
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OBE1 95Z28's Avatar
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I agree with Shoebox! Aluminum heads don't like to be overheated; why loose a sensor that can help prevent blowing head gaskets when it is such an easy/cheap repair. Cleaning your existing sensor may work. I replaced mine several years ago and the new one is still going strong.
Old Jan 5, 2008 | 07:22 PM
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Try pulling the sensor and cleaning.
Old Jan 6, 2008 | 09:42 AM
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I just replaced mine the other day. As it turned out, it the one that was in there just crudded up and was OK. I put the new one in anyway and have kept the old one as a spare.
Old Jan 6, 2008 | 10:44 AM
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where is the sensor located?
Old Jan 6, 2008 | 12:03 PM
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I have an aftermarket rad but I think the sensor is in the same spot. It is on the upper portion of the passenger side of the radiator. If you look from the passenger side past the battery, you should see a roughly 1.5" square piece plugged into the rad with an electrical connector fastened from the bottom. That is the sensor.

I found that once I removed the battery it was really easy to replace. Just used a big screwdriver to pop the old one out coming at it from the cavity created by removing the battery. Then I disconnected the connector from the old one, reconnected to the new one and then popped the new one back in.

I was lazy enough to not even drain the rad - I decided to be quick about it and let it leak while there was no sensor in there. I lost a little coolant but it wasn't too bad.
Old Jan 6, 2008 | 01:53 PM
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Originally Posted by KeithO
I have an aftermarket rad but I think the sensor is in the same spot. It is on the upper portion of the passenger side of the radiator. If you look from the passenger side past the battery, you should see a roughly 1.5" square piece plugged into the rad with an electrical connector fastened from the bottom. That is the sensor.

I found that once I removed the battery it was really easy to replace. Just used a big screwdriver to pop the old one out coming at it from the cavity created by removing the battery. Then I disconnected the connector from the old one, reconnected to the new one and then popped the new one back in.

I was lazy enough to not even drain the rad - I decided to be quick about it and let it leak while there was no sensor in there. I lost a little coolant but it wasn't too bad.
Thank you for the post. I wondered if you have to drain the radiator to change it and you answered my question.
Old Jan 6, 2008 | 03:11 PM
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OBE1 95Z28's Avatar
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Shoebox has a good photo and write-up here: http://shbox.com/1/low_coolant2.jpg
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